On 2006-08-04 15:21:52, Dennis Lee Bieber wrote: > On Fri, 4 Aug 2006 14:09:15 -0300, Gerhard Fiedler <[EMAIL PROTECTED]> > declaimed the following in comp.lang.python: > >> Python === C >> Textual representation a === Address operator (&a) >> id(a) === Dereference operator (*a) >> >> I think I didn't quite translate what you meant, but you get the idea. I >> don't think you can come up with a working analogy. The differences are >> just too many -- if you consider the C language on the right side, not a >> custom application you developed in C. >> > Closer would be (putting C constructs on left) > > c ~= id(c) (address of the object identified by 'c') > *c ~= c (dereference to manipulate the object itself) > &c ~= no Python equivalent for "the address of the name 'c'" > > C 'c' is a variable, one can take the address of the storage it > uses, and manipulate the contents of that storage. One does not have > that access with Python name bindings.
But this means that C variables are not analog to Python variables, C dereferenced pointers are. (c is a C variable; *c is /not/ a C variable, it's a dereferenced pointer.) This is what I've been trying to say for a while now... :) Gerhard -- http://mail.python.org/mailman/listinfo/python-list
